Prognostic Meteorological Discussion
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FXUS01 KWBC 250818
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
417 AM EDT SAT MAR 25 2017

VALID 12Z SAT MAR 25 2017 - 12Z MON MAR 27 2017

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORM OVER PARTS OF THE
LOWER/MIDDLE MISSISSIPPI VALLEY/CENTRAL GULF COAST/TENNESSEE
VALLEY...

...HEAVY RAIN POSSIBLE OVER PARTS OF THE TENNESSEE VALLEY/SOUTHERN
APPALACHIANS...

...RAIN/FREEZING RAIN POSSIBLE OVER PARTS OF THE UPPER GREAT LAKES
AND THE NORTHEAST...

AN UPPER-LEVEL LOW OVER THE CENTRAL/SOUTHERN PLAINS AND
MIDDLE/LOWER MISSISSIPPI VALLEY WILL MOVE NORTHEASTWARD TO PARTS
OF THE OHIO VALLEY/GREAT LAKES WHILE WEAKENING BY SUNDAY.
MOISTURE FROM THE GULF OF MEXICO WILL STREAM NORTHWARD INTO THE
OHIO VALLEY AND POOL ALONG THE ASSOCIATED STATIONARY FRONT INTO
THE MID-ATLANTIC.  SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG
AND AHEAD OF THE COLD FRONT OVER THE MIDDLE/LOWER MISSISSIPPI
VALLEY THAT WILL MOVE EASTWARD TO THE EASTERN OHIO VALLEY/EASTERN
GULF COAST BY SUNDAY.  RAIN WILL DEVELOP OVER PARTS OF THE CENTRAL
PLAINS INTO THE GREAT LAKES/OHIO VALLEY AND THE NORTHEAST THROUGH
SUNDAY.  THE RAIN WILL END OVER PARTS OF THE CENTRAL PLAINS BY
SATURDAY EVENING.  AS THE RAIN MOVES INTO PARTS OF THE NORTHEAST
AND UPPER GREAT LAKES, RAIN/FREEZING RAIN WILL DEVELOP OVER PARTS
OF THE AREAS SATURDAY NIGHT INTO SUNDAY EVENING.

MEANWHILE, AN UPPER-LEVEL TROUGH OVER THE WEST COAST WILL MOVE
EASTWARD TO THE PLAINS BY SUNDAY EVENING.  THE SYSTEM WILL PRODUCE
RAIN AND HIGHER ELEVATION SNOW OVER PARTS OF THE PACIFIC
NORTHWEST/CALIFORNIA EASTWARD TO PARTS OF THE NORTHERN
ROCKIES/GREAT BASIN THAT WILL MOVE INTO PARTS OF THE
CENTRAL/SOUTHERN ROCKIES AND THE NORTHERN HIGH PLAINS BY SUNDAY
MORNING.  IN ADDITION, THE RAIN AND HIGHER ELEVATION SNOW WILL
COME TO AN END OVER PARTS OF THE PACIFIC NORTHWEST/CALIFORNIA INTO
THE NORTHERN ROCKIES/GREAT BASIN OVERNIGHT SATURDAY INTO SUNDAY
MORNING.  BY SUNDAY AFTERNOON, RAIN AND HIGHER ELEVATION SNOW WILL
BEGIN AGAIN OVER PARTS OF THE PACIFIC NORTHWEST/CALIFORNIA INTO
SUNDAY EVENING AS ADDITIONAL UPPER-LEVEL ENERGY MOVES ONSHORE OVER
THE WEST.

ADDITIONALLY, ENERGY IN THE UPPER-LEVEL TROUGH MOVING EASTWARD
ACROSS THE SOUTHWEST/SOUTHERN ROCKIES WILL DEVELOP LOW PRESSURE
OVER THE SOUTHERN HIGH PLAINS OVERNIGHT SATURDAY MOVING EASTWARD
TO THE SOUTHERN PLAINS BY SUNDAY EVENING.  THE SYSTEM WILL PRODUCE
RAIN AND HIGHER ELEVATION SNOW OVER PARTS OF THE CENTRAL
ROCKIES/CENTRAL HIGH PLAINS ON SUNDAY MORNING.  ON SUNDAY
AFTERNOON INTO SUNDAY EVENING, SHOWERS AND THUNDERSTORMS WILL
DEVELOP OVER PARTS OF THE SOUTHERN/CENTRAL PLAINS.


ZIEGENFELDER


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_WBG.PHP
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